Comparison

XKM STL vs KO Flow

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

XKM STL

This app connects martial arts enthusiasts with their instructors and community. Members can access training materials, track progress, register for events, and enroll in programs. It facilitates communication and provides easy access to class schedules.

Highlights
  • Instructor updates and insights
  • Event and program registration
  • On-the-go training curriculum access
  • Progress tracking (payment, rank, attendance)
  • Community messaging
  • Class schedule viewing
Features
Read full description

The XKMSTL app is for current members and those interested in our action packed martial arts programs. Features: - Updates from our Instructor Team: Direct updates and insights. - Event Registration: Sign up for events with ease. - Program Enrollment: Join our martial arts programs effortlessly. - Messaging: Stay connected with our community. - Training Access: View our curriculum and training videos on-the-go. - Progress Tracking: Monitor your payment, rank, and attendance. - Refer Friends: Invite friends to join our martial arts family. - Class Schedule: Easily check when classes are happening. Download the XKMSTL app and kickstart your martial arts journey today!

About

KO Flow

This app offers guided voice workouts for boxing, kickboxing, Muay Thai, and karate. Choose your trainer, customize rounds, and follow combination callouts for shadowboxing or heavy bag training. It also includes fight studies and progress tracking.

Highlights
  • Voice-guided striking workouts
  • Boxing, kickboxing, Muay Thai, karate programs
  • Customizable round length and tempo
  • Build and save personal workouts
  • Fight Studies for technique analysis
  • Workout history and progress tracking
Features
Read full description

Train like it’s fight night—wherever you are. KO Flow is a voice-guided striking training app for boxing, kickboxing, Muay Thai, and karate. Choose your trainer, set your rounds, and follow clear combination callouts while shadowboxing or working the heavy bag. TRAIN WITH PURPOSE • Guided beginner, intermediate, and advanced training • Boxing, kickboxing, Muay Thai, and karate programs • Five distinct trainer voices and coaching styles • Adjustable round length, rest periods, tempo, and cadence • Focus View for distraction-free combination callouts • Optional encouragement during longer sessions BUILD YOUR OWN WORKOUT • Generate structured sessions based on your discipline, level, and focus • Create and save personal workouts • Build custom striking combinations • Adjust every round to match your available time • Train through nine-session Fight Camps with clear progression STUDY THE FINISH Explore curated Fight Studies drawn from sourced boxing, kickboxing, and Muay Thai bouts. Review the observed finishing sequence, then train with a separate practice adaptation built for solo workouts. TRACK EVERY ROUND • Save completed sessions to your training history • Follow workout totals, streaks, and Fight Camp progress • Schedule optional training reminders • Choose the trainer and visual style that fit your sessions KO Flow works for shadowboxing, heavy-bag training, home workouts, and independent gym sessions. No partner is required. A limited number of Starter Workouts are included. KO Flow Premium unlocks generated workouts, advanced training, saved and custom workouts, combination creation, and Fight Study imports. KO Flow offers monthly and annual auto-renewing subscriptions. Payment is charged to your Apple Account when the purchase is confirmed. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your Apple Account settings. Train safely, use appropriate equipment, and work within your experience and physical ability. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://koflow.app/privacy

Screenshots

XKM STL3 screens
KO Flow4 screens

Verdict

The call

The clearest difference is in-app purchases: XKM STL at none against KO Flow's 2. XKM STL also leads on iOS requirement (14.0 vs 16.4). KO Flow's advantage is update cadence (every 3 days vs every 15 months). On price, rating, ratings volume and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. KO Flow sells 2 in-app purchases, starting at $6.99 per month. XKM STL asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for XKM STL against 5.0 for KO Flow. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

XKM STL ships an update every 15 months, KO Flow every 3 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
XKM STL versus KO Flow: the parameters behind the verdict, then further details
ParameterXKM STLKO Flow
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 15 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.4
Further details — not scored
Size47 MB205 MB
Age rating9+4+
DeveloperXKMMesmer LLC

Customer experience

XKM STL

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

KO Flow

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

XKM STL

No in-app purchases

2 purchases

KO Flow

Subscriptions2
  • KO Flow Premium Monthly$6.991 Month
  • KO Flow Premium Annual$39.991 Year

Questions

Is XKM STL free?
XKM STL is free to download, with no in-app purchases.
Is KO Flow free?
KO Flow is free to download, with in-app purchases available.
Which has better reviews, XKM STL or KO Flow?
XKM STL and KO Flow are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do XKM STL or KO Flow have ads?
Neither XKM STL nor KO Flow shows ads.
Which is updated more often, XKM STL or KO Flow?
XKM STL ships an update every 15 months, and KO Flow every 3 days. Most recently, XKM STL was updated on November 4, 2026 and KO Flow on October 31, 2026.

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